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黄铜管是冷凝器管材,加工过程中残留有润滑脂,形成碳膜。它对冷凝器有明显的腐蚀作用,是破坏冷凝器的主要因素之一,尤其碳膜分布不均匀时,迅速产生腐蚀点穿透管壁。为消除冷凝器管内的碳膜问题,要求对碳膜的含碳量进行精确测定。沈阳有色金属加工厂中试室曹万琮采用管炉燃烧(850℃)电导法测定,经各种管材碳膜的测定数据证明,测试结果可信。最大相对标准偏差为15％,满足了冷凝器管材生产工艺的
Brass tube is a condenser tube, left in the process of grease, the formation of carbon film. It has obvious corrosion of the condenser, which is one of the main factors that destroy the condenser. Especially when the carbon film is unevenly distributed, the corrosion point rapidly penetrates the pipe wall. In order to eliminate the carbon film in the condenser tube, it is required to accurately measure the carbon content of the carbon film. Test chamber of Shenyang non-ferrous metal processing plant Cao Wan 琮 using furnace combustion (850 â "ƒ) conductivity method, the determination of carbon pipe by a variety of pipe data show that the test results credible. The maximum relative standard deviation of 15%, to meet the condenser tube production process